Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
Skyhook controller applied in nonlinear vehicle suspension with magnetorheological damper
Submission Author:
Fernando Emerenciano Nunes de Oliveira , PR
Co-Authors:
Fernando Emerenciano Nunes de Oliveira, Rodrigo Tumolin Rocha, Frederic Conrad Janzen, José Manoel Balthazar, Angelo Marcelo Tusset
Presenter: José Manoel Balthazar
doi://10.26678/ABCM.CONEM2018.CON18-0478
Abstract
This work considers the dynamics and control of a vehicle suspension system through a nonlinear a quarter-car model. The control is performed through the Skyhook controller, which is commonly used only to reduce the chassis mass displacement amplitudes and the acceleration of the chassis. Numerical simulations were performed to analyze not only the chassis displacement and acceleration reduction levels but also the wheel axis displacement reduction levels in order to verify if the proposed controllable system has advantages over the uncontrolled system. The actuator considered in this work was the magnetorheological damper due to its advantages related to the various applications in the engineering area. The numerical results showed that considering a step-type excitation control was efficient to reduce the chassis displacement levels, wheel shaft mass accommodation time and chassis mass acceleration. In this way, it was possible to consider that the controller was able to add greater passenger comfort and dirigibility to the vehicle at the same time.
Keywords
magnetorheological damper, Nonlinear Vehicle Quarter-car Model, Skyhook Controller.
